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Correlation analysis of landscape patterns and urban thermal environment in Kunming based on a panel data model
Ting Chen1, Zhibin Ren2, Yao Fu3
1Faculty of Soil and Water Conservation, Southwest Forestry University, Kunming, 650024, China.
Scientific Reports
|November 9, 2024
Summary
Urbanization intensifies the urban heat island (UHI) effect by altering landscape patterns. Water index (NDWI) and spatial configuration significantly impact UHI, offering new insights for urban thermal environment management.
Area of Science:
- Urban Climatology
- Environmental Science
- Geographic Information Systems
Background:
- Urbanization drives significant changes in landscape patterns, directly influencing the urban heat island (UHI) effect.
- Understanding the relationship between landscape characteristics and UHI intensity is crucial for urban planning and climate adaptation.
Purpose of the Study:
- To analyze the relationship between urban landscape patterns and the urban heat island (UHI) effect in Kunming from 1995 to 2020.
- To investigate the influence of different landscape scales on UHI intensity.
- To introduce a novel panel data model for UHI analysis.
Main Methods:
- Construction of a panel data model to assess UHI intensity and landscape pattern dynamics.
- Analysis conducted across four distinct spatial scales.
- Evaluation of various landscape metrics, including the Normalized Difference Water Index (NDWI) and vegetation indices.
Main Results:
- Kunming's landscape pattern evolved, with increased artificial patches and decreased natural areas, correlating with a more pronounced UHI effect.
- The influence of artificial patches on UHI intensified with increasing analysis scale.
- The NDWI demonstrated the most significant impact on UHI, with a greater cooling effect observed at larger scales.
Conclusions:
- Spatial configuration of urban landscapes significantly impacts UHI intensity, more so than landscape composition or vegetation indices.
- The study provides a new methodological approach using panel data models to understand urban thermal environment dynamics.
- Findings offer valuable insights for mitigating UHI effects through strategic landscape planning.
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